TWI221430B - Sleeve for rolling mill oil film bearing - Google Patents

Sleeve for rolling mill oil film bearing Download PDF

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Publication number
TWI221430B
TWI221430B TW090129333A TW90129333A TWI221430B TW I221430 B TWI221430 B TW I221430B TW 090129333 A TW090129333 A TW 090129333A TW 90129333 A TW90129333 A TW 90129333A TW I221430 B TWI221430 B TW I221430B
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TW
Taiwan
Prior art keywords
sleeve
neck
inner tapered
oil film
bearing
Prior art date
Application number
TW090129333A
Other languages
Chinese (zh)
Inventor
Thomas C Wojtkowski Jr
Peter N Osgood
Earl S Winslow Jr
Original Assignee
Morgan Construction Co
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
    • F16C13/02—Bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/07—Adaptation of roll neck bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/07—Adaptation of roll neck bearings
    • B21B31/074—Oil film bearings, e.g. "Morgoil" bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2226/00—Joining parts; Fastening; Assembling or mounting parts
    • F16C2226/50—Positive connections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2300/00—Application independent of particular apparatuses
    • F16C2300/10—Application independent of particular apparatuses related to size
    • F16C2300/14—Large applications, e.g. bearings having an inner diameter exceeding 500 mm
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2322/00—Apparatus used in shaping articles
    • F16C2322/12—Rolling apparatus, e.g. rolling stands, rolls
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49636—Process for making bearing or component thereof
    • Y10T29/49643—Rotary bearing
    • Y10T29/49647—Plain bearing
    • Y10T29/49668—Sleeve or bushing making

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rolling Contact Bearings (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Mounting Of Bearings Or Others (AREA)
  • Sliding-Contact Bearings (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Support Of The Bearing (AREA)

Abstract

A sleeve is disclosed for use in an oil film bearing of the type employed to rotatably support a roll neck in a rolling mill. The sleeve has an internally tapered section, an end section aligned axially with the internally tapered section, and a cylindrical outer surface surrounding the internally tapered section. The cylindrical outer surface is adapted to be rotatably journalled in a bushing component of the bearing and has a diameter D of at least 500 mm. The internally tapered section is adapted to be seated on an externally tapered section of the roll neck and has a taper angle greater than three degrees and a minimum thickness of between about 10 mm and 0.024D+14.5. Keyways located outside of the internally tapered section and exclusively in the end section serve to rotatably fix the sleeve to the roll neck.

Description

1221430 Α7 Β7 五、發明説明（1 ) 1 .發明部份 本發明係有關用以可轉動之方式支持輥軋機之輥子頸 部之油膜軸承。 2 · 討論背景 輥軋機油膜軸承普通包含一套筒軸向套於，並以可轉 動之方式固定於輥子頸部上。套筒由一軸襯包圍，包含於 輥子箱中所裝之一固定座中。在使用中，套筒以可轉動之 方式受支持於薄油膜上，液體動力維持於套筒及軸襯間之 軸承負載區處。 套筒可爲內圓筒形，用於圓筒形或”直”輥子頸部上 ’或可爲內錐形，用於錐形輕子頸部上。而且，套筒可” 自鎖定”或”非鎖定”。自鎖定套筒由干涉配合摩擦固萣 於輥子頸部，而非鎖定套筒則需要鍵或類似物來達成與輥 子頸部機械相互接合。 本發明係有關內錐形套筒之改良，具有至少5 〇〇 m m之較大軸頸直徑，及至少三度之非鎖定錐形角度。 參考圖1 ，此一套筒顯示於1 〇，作爲輥軋機油膜軸 承1 2之一組成件。套筒1 〇以可移去之方式置於輥子頸 部之錐形部份1 6上，並由鍵1 4或類似物以可轉動之方 式固定於輥子頸部上。套筒由軸襯1 8包圍，並固定於一 軸承固定座2 0中。在使用時，如前述，套筒以可轉動之 方式受支持於薄油膜（未顯示）上，液體動力維持於套筒 及軸襯間之軸承負載區處。 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） I—J--r.------ (請先閱讀背面之注意事項再填寫本頁) 訂 f 經濟部智慧財產局員工消費合作社印製 λ 1221430 A7 B7 經濟部智慧財產局員工消費合作社印製 五、發明説明（2) 參考圖2，可見套筒10具有內錐形部份2 1 ，具有 長度L，一端部2 2軸向伸出內錐形部份之外端外，及一 圓筒形外表面2 3包圍內錐形部份。圓筒形外表面具有直 徑D (普通亦稱爲”軸頸”直徑）。內錐形部份具有一錐 形角度α，一最小厚度t在其內端，及一最大厚度t ‘在 其外端，鄰接端部2 2。鍵槽1 5與鍵1 4機械相互接合 合作，鍵及鍵槽二者在內錐形部份2 1外，並全在端部 2 2內。 內錐形部份2 1之軸頸直徑D及長度L管制軸承之尺 寸及負載承擔容量。錐形角度α決定套筒是自鎖定或非鎖 定。 當此種油膜軸承於1 9 3 0年代引進於輥軋機中時， 精於本藝之人士認爲在負載區處之套筒壁需具有最小厚度 t足以抵抗套筒在負載情況下之彈性變形，且亦具有最大 厚度t ‘足以抵抗在鍵槽處由於扭力所引起之應力所造成 之損壞。故此，如圖5之線2 4所示，在具有軸頸直徑自 5 0 0 - 2 1 0 0mm範圍之套筒，最小厚度t普通自 30—70mm範圍，平均爲t=〇·024D+ 2 2 · 6 ’如由虛線所不。 此設計標準維持幾乎不變，直至1 9 7 0年代中期， 當精於本藝之人士發現，由於所輥軋之產品之尺寸之不規 則，導致鍵槽中斷內錐形部份。如發表於美專利 4，0. 9 3，3 2 1號。爲改正此問題，鍵及鍵槽移出內 錐形部份2 1 ，而至全在端部2 2之其現位置中，如顯示 (請先閱讀背面之注意事項再填寫本頁) ψ 、1 τ 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） c 1221430 A7 B7 五、發明説明（3) 於圖1及2。雖此消除維持一增加之厚度t ‘於內錐形部 份之外端處之任何需要，但由於精於本藝之人士仍然相信 ’負載所引起之套筒彈性變形有害，且應不計成本避免， 故套筒厚度維持不變。 發明槪要 然而，現經發現，與普通認知相反，一些套筒彈性變 形不獨可容忍，且爲所必需，因爲此導致受支持於軸承負 載區處油膜上之套筒之表面積增加。此轉而增加軸承之負 載承擔容量。故此，在特定軸頸直徑D及錐形角度α，可 由減小最小厚度t ，引進彈性變形之一有利幅度，此在特 定之長度L及錐形角度α，導致內錐形部份之整個長度上 套筒厚度之減小。厚度t之減小宜由增加套筒之膛孔尺寸 達成，同時維持軸頸直徑D不變。此使套筒可容納較大之 輥子頸部，從而進一步加強整個組件。 本發明之一主要目的在經由適當減小最小套筒厚度t ，增加具有內錐形非鎖定套筒之較大油膜軸承之負載承擔 容量至少1 0%，且宜高至2 0%或以上。 本發明之一隨帶目的在減小製造套筒之金屬鍛件或鑄 件之尺寸及重量，從而有利降低原料成本。 現自更詳細之說明並參考附圖，可明暸本發明之此等 及其他目的，優點，及特色，在附圖中： 附圖簡述 本紙張尺度適用中國國家標準（CNS ) A4規格（210 X297公釐） I--- ---Γ.------ (請先閲讀背面之注意事項再填寫本頁) 訂 經濟部智慧財產局員工消費合作社印製 1221430 A7 B7 五、發明説明（4) 圖1槪要顯示輥軋機中用於以可轉動之方式支持輥子 頸部之油膜軸承組件； 圖2爲圖1所示之內錐形非鎖定套筒之放大縱斷面圖 圖3 A槪要顯示當普通內錐形非鎖定套筒在負載下轉 動時之負載區之寬度； 圖3 B爲與圖3 A相似之圖，槪要顯示套筒厚度t之 減小導致負載區寬度之增加，所有其他情況相同； 圖4爲比較圖3 A及3 B所示之套筒之套筒中心線圓 周應力之曲線圖；及 圖5顯示普通套筒及依本發明修改之套筒之t / d關 係之曲線圖。 主要元件對照表 10 套筒 12 油膜軸承 14 鍵 15 鍵槽 16 錐形部份 1 8 軸襯 2 0 軸承固定座 2 1 內錐形部份 2 2 . 端部 2 3 圖商形外表面 本紙張尺度適用中國國家標準（CNS) M規格〈210χ：Ζ97公餐） β -ϋ· ϋ—L ι_^ϋ ϋ—·— n ϋϋ ϋϋ —ϋ— H (請先閱讀背面之注意事項再填寫本頁) 訂 f 經濟部智慧財產局員工消費合作社印製 1221430 A7 B7 __ 五、發明説明（5) 較佳實施例之詳細說明 在圖3 A中，尺寸經誇大，俾便圖解，顯示具有軸頸 直徑D及厚度t a之一套筒1 〇 a在負載下順時針方向轉 動於一軸襯1 8內。在套筒1 0 a上內錐形部份2 1處所 產生之中心線圓周應力由圖4之曲線S a表示。離平均應 力之最大偏離在0 1處開始，並上升至最大，然後降回至 0 2之最小。0 1及Θ 2間之圓周距離w a代表負載區之 寬度，在此，套筒受支持於液體動力維持之油膜上。 在圖3 B中，具有相同軸頸直徑D但具有較小厚度 t b之一套筒1 〇 b顯示操作於相同負載下。較小厚度 t b使套筒在負載下可更自由彈性變形，具有所產生之中 心線圓周應力由圖4之曲線S b表示。 可見曲線S b離平均應力之最大偏離亦開始於Θ 1 ， 且在上升至最大後，降回至Θ 3處之最小。圓周距離wb 較W a超出w △，W Δ爲由於套筒厚度自t a減小至t b所 引起之彈性套筒變形增加之結果。由於內錐形部份2 1之 長度L在二套筒中相同，故負載區面積之增加百分率可由 WA/WaXl〇〇 計算。 依據本發明且參考圖5，現確定與裝有〇 . 0 2 4D + 2 2 · 6之平均最小厚度t之普通尺寸之套筒之軸承相 較’由減小最小厚度t至約1 0 m m至0 . 0 2 4 D + 1 4 . 5間之範圍，且宜至約1 9 m m至0 · 0 2 4 D + 7 . 4間，可達成負載承擔容量增加約1 0 %至2 0 %及 本紙張尺度適用中國國家標準（CNS ) A4規格（210X29?公釐） -----Γ.----衣-- (請先閱讀背面之注意事項再填寫本頁) 訂 經濟部智慧財產局員工消費合作社印製 ^2143^ A7 —______ B7 五、發明説明（6) 更阔。 1Omm且宜19mm之最小厚度確保套筒具有充分 $結構剛度，以抵抗在機器處理之期間中，用以變換鍛造 或鑄造殼爲完成產品所施加之相當中度之力所引起之變形 。，然而，一旦套筒裝於輥子頸部上時，在更高之輥軋負載 下之變形有利增加在負載區處所支持之套筒之面積。 ϋ- HI n_i »Lli 1&gt;1 —ϋ —ϋ 11_1 I n (請先閱讀背面之注意事項再填寫本頁) 訂 經濟部智慧財產局員工消費合作社印製 準 標 家 國 國 中 一用 適I j 尺 一張 -紙 本 釐 公 97 21221430 Α7 Β7 V. Description of the invention (1) 1. Inventive part The present invention relates to an oil film bearing for supporting a roll neck of a rolling mill in a rotatable manner. 2 · Discussion Background Rolling mill oil film bearings usually include a sleeve axially sleeved and rotatably fixed on the roll neck. The sleeve is surrounded by a bushing and is contained in a fixed seat installed in the roller box. In use, the sleeve is rotatably supported on a thin oil film, and the fluid power is maintained at the bearing load area between the sleeve and the bushing. The sleeve may be internally cylindrical for use on a cylindrical or "straight" roller neck &apos; or may be internally tapered for use on a conical lepton neck. Moreover, the sleeve can be "self-locking" or "unlocked". The self-locking sleeve is fixed to the neck of the roller by interference fit friction, while the non-locking sleeve requires a key or the like to achieve mechanical engagement with the neck of the roller. The invention relates to an improvement of an inner conical sleeve, which has a large journal diameter of at least 5000 mm and an unlocked conical angle of at least three degrees. Referring to Fig. 1, this sleeve is shown at 10 as a component of the oil film bearing 12 of the rolling mill. The sleeve 10 is removably placed on the tapered portion 16 of the neck of the roller, and is fixed to the neck of the roller in a rotatable manner by a key 14 or the like. The sleeve is surrounded by a bushing 18 and is fixed in a bearing holder 20. In use, as mentioned above, the sleeve is rotatably supported on a thin oil film (not shown), and the fluid power is maintained at the bearing load area between the sleeve and the bushing. This paper size applies Chinese National Standard (CNS) A4 specification (210X297 mm) I—J--r .------ (Please read the notes on the back before filling this page) Order f Intellectual Property Bureau of the Ministry of Economic Affairs Printed by the employee's consumer cooperative λ 1221430 A7 B7 Printed by the employee's consumer cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the invention (2) Referring to FIG. 2, it can be seen that the sleeve 10 has an inner tapered portion 2 1 with a length L and one end 2 2 axially protrudes beyond the outer end of the inner tapered portion, and a cylindrical outer surface 2 3 surrounds the inner tapered portion. The cylindrical outer surface has a diameter D (commonly also referred to as a "spigot" diameter). The inner tapered portion has a tapered angle α, a minimum thickness t at its inner end, and a maximum thickness t 'at its outer end, adjacent to the end portion 2 2. The key slot 15 and the key 14 are mechanically joined to each other. Both the key and the key slot are outside the inner tapered portion 2 1 and are all inside the end portion 2 2. The journal diameter D and length L of the inner tapered part 21 control the size and load bearing capacity of the bearing. The taper angle α determines whether the sleeve is self-locking or non-locking. When this type of oil film bearing was introduced into the rolling mill in the 1930s, those skilled in the art believed that the sleeve wall at the load area must have a minimum thickness t sufficient to resist the elastic deformation of the sleeve under load. , And also has a maximum thickness t 'sufficient to resist damage caused by stress caused by torsion at the keyway. Therefore, as shown by line 24 in Fig. 5, the minimum thickness t in a sleeve with a journal diameter ranging from 500-2 100 mm is generally in the range of 30-70 mm, and the average is t = 0. 024D + 2 2 6 'as indicated by the dotted line. This design standard remained almost unchanged until the mid-1970s, when those skilled in the art discovered that irregularities in the size of the rolled product caused the keyway to break the inner cone. Such as published in U.S. Patent 4, 0.9 3, 3 21. In order to correct this problem, the key and keyway are moved out of the inner conical part 2 1 and are all in the current position of the end part 2 2 as shown (please read the precautions on the back before filling this page) ψ, 1 τ This paper size is in accordance with China National Standard (CNS) A4 (210X297 mm) c 1221430 A7 B7 V. Description of the invention (3) Figures 1 and 2. Although this eliminates any need to maintain an increased thickness t 'at the outer end of the inner conical portion, those skilled in the art still believe that the elastic deformation of the sleeve caused by the load is harmful and should be avoided regardless of cost Therefore, the sleeve thickness remains unchanged. Summary of the Invention However, it has been found that, contrary to common perception, some sleeves' elastic deformation is not tolerable and is necessary because it results in an increase in the surface area of the sleeve supported on the oil film at the bearing load area. This in turn increases the bearing load bearing capacity. Therefore, at a specific journal diameter D and a tapered angle α, a minimum thickness t can be reduced to introduce an advantageous range of elastic deformation. This specific length L and a tapered angle α result in the entire length of the inner tapered portion. The thickness of the upper sleeve is reduced. The reduction in thickness t should be achieved by increasing the bore size of the sleeve while maintaining the journal diameter D unchanged. This allows the sleeve to accommodate a larger roller neck, thereby further strengthening the entire assembly. One of the main objects of the present invention is to increase the load bearing capacity of a larger oil film bearing having an inner tapered non-locking sleeve by appropriately reducing the minimum sleeve thickness t to at least 10%, and preferably as high as 20% or more. One of the purposes of the present invention is to reduce the size and weight of the metal forgings or castings used to make the sleeve, thereby advantageously reducing the cost of raw materials. These and other objects, advantages, and features of the present invention will become apparent from a more detailed description with reference to the accompanying drawings. In the drawings: Brief description of the drawings The paper dimensions are applicable to the Chinese National Standard (CNS) A4 specification (210 X297 mm) I --- --- Γ .------ (Please read the notes on the back before filling out this page) Order printed by the Intellectual Property Bureau Staff Consumer Cooperatives of the Ministry of Economy 1221430 A7 B7 V. Description of the invention (4) Figure 1 shows the oil film bearing assembly in the rolling mill for supporting the neck of the roller in a rotatable manner; Figure 2 is an enlarged longitudinal sectional view of the inner tapered non-locking sleeve shown in Figure 1; Figure 3 A 槪 To show the width of the load zone when the ordinary inner cone non-locking sleeve rotates under load; Figure 3B is a diagram similar to Figure 3A. 槪 To show that the decrease in sleeve thickness t results in the width of the load zone The increase is all the same in all other cases; FIG. 4 is a graph comparing the circumferential stress of the sleeve centerline of the sleeve shown in FIGS. 3A and 3B; and FIG. 5 shows the ordinary sleeve and the sleeve modified according to the present invention. Graph of t / d relationship. Comparison table of main components 10 Sleeve 12 Oil film bearing 14 key 15 Key groove 16 Conical part 1 8 Bushing 2 0 Bearing holder 2 1 Inner conical part 2 2. End part 2 3 Figure-shaped outer surface Paper size Applicable to Chinese National Standard (CNS) M specification <210χ: Z97 Meal) β -ϋ · ϋ—L ι_ ^ ϋ ϋ— · — n ϋϋ ϋϋ —ϋ— H (Please read the notes on the back before filling this page) Order f Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 1221430 A7 B7 __ V. Description of the invention (5) Detailed description of the preferred embodiment In Figure 3 A, the dimensions are exaggerated, and the diagram is shown, showing the diameter of the journal D One of the sleeves 10a and the thickness ta is rotated clockwise in a bushing 18 under a load. The center line circumferential stress generated at the inner tapered portion 21 on the sleeve 10 a is represented by a curve S a in FIG. 4. The maximum deviation from the average stress starts at 0 1 and rises to a maximum, then drops back to a minimum of 0 2. The circumferential distance w a between 0 1 and Θ 2 represents the width of the load zone, where the sleeve is supported on an oil film maintained by hydrodynamic force. In Fig. 3B, a sleeve 10b having the same journal diameter D but having a smaller thickness tb is shown to operate at the same load. The smaller thickness t b allows the sleeve to be more freely elastically deformed under load, and the resulting circumferential stress of the centerline is represented by the curve S b in FIG. 4. It can be seen that the maximum deviation of the curve S b from the average stress also starts at Θ 1, and after rising to the maximum, it drops back to the minimum at Θ 3. The circumferential distance wb is larger than w a by w Δ. W Δ is the result of an increase in the elastic sleeve deformation caused by the reduction of the sleeve thickness from t a to t b. Since the length L of the inner tapered portion 21 is the same in the two sleeves, the percentage increase in the area of the load zone can be calculated by WA / WaX100. According to the present invention and with reference to FIG. 5, it is now determined to reduce the minimum thickness t to about 10 mm compared with a bearing of a common size sleeve equipped with an average minimum thickness t of 0.02 4D + 2 2 · 6 The range is from 0. 0 2 4 D + 1 4. 5 and preferably from about 19 mm to 0 · 0 2 4 D + 7.4. The load bearing capacity can be increased by about 10% to 20% And this paper size applies Chinese National Standard (CNS) A4 specification (210X29? Mm) ----- Γ .---- clothing-- (Please read the precautions on the back before filling this page) Printed by the Consumer Cooperatives of the Property Bureau ^ 2143 ^ A7 —______ B7 V. Description of Invention (6) Wider. A minimum thickness of 10mm and preferably 19mm ensures that the sleeve has sufficient structural rigidity to resist the deformation caused by the relatively moderate force exerted by the forging or casting shell to complete the product during machine processing. However, once the sleeve is mounted on the roll neck, the deformation under higher rolling load is beneficial to increase the area of the sleeve supported at the load area. ϋ- HI n_i »Lli 1 &gt; 1 —ϋ —ϋ 11_1 I n (Please read the precautions on the back before filling out this page) Order the Intellectual Property Bureau Staff Consumer Cooperatives of the Ministry of Economic Affairs to print the quasi-standard home country and middle school one use I j Ruler-Paper centimeter 97 2

Claims (1)

六、申請專利範圍 1 1 · 一種用於油膜軸承中之套筒，軸承爲用以可轉動 之方式支持輥軋機中之輥子頸部之型式，套筒具有內錐形 部份，一端部軸向對齊內錐形部份，及一圓筒形外表面包 圍內錐形部份，圓筒形外表面適於以可轉動之方式裝於軸 承之軸襯組成件中，並具有直徑D至少5 0 0 m m，內錐 形部份適於置於輥子頸部之外錐形部份上，並具有一錐形 角度大於三度及最小厚度在約10mm及〇.024D+ 1 4 · 5之間，及機械可接合裝置置於內錐形部份外’並 單在該端部中，用以可轉動式固定套筒於輥子頸部。 2 .如申請專利範圍第1項所述之套筒，其中’最小 厚度t宜至少爲19mm。 3 ·如申請專利範圍第2項所述之套筒，其中’最小 厚度t宜不大於0.024D+7.4。 i.-1. tr^ (請先閲讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐）6. Scope of patent application 1 1 · A sleeve used in oil film bearings. The bearing is a type that supports the neck of a roller in a rolling mill in a rotatable manner. The sleeve has an inner tapered part and one end is axial. Align the inner tapered portion and a cylindrical outer surface surrounding the inner tapered portion. The cylindrical outer surface is adapted to be rotatably mounted in the bearing bushing component, and has a diameter D of at least 5 0 0 mm, the inner tapered part is suitable to be placed on the tapered part outside the neck of the roller, and has a tapered angle greater than three degrees and a minimum thickness between about 10mm and 0.024D + 1 4 · 5 and mechanical The engageable device is placed outside the inner tapered portion and is only in the end portion to rotatably fix the sleeve to the neck of the roller. 2. The sleeve according to item 1 of the scope of patent application, wherein the minimum thickness t is preferably at least 19 mm. 3. The sleeve as described in item 2 of the scope of the patent application, wherein the minimum thickness t should not be greater than 0.024D + 7.4. i.-1. tr ^ (Please read the notes on the back before filling out this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs This paper size applies to the Chinese National Standard (CNS) A4 specification (210X297 mm)
TW090129333A 2000-12-08 2001-11-27 Sleeve for rolling mill oil film bearing TWI221430B (en)

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Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI271225B (en) 2002-05-29 2007-01-21 Sms Demag Ag Apparatus for controlled influencing of the supporting forces of backing rollers
US7055439B2 (en) * 2004-06-03 2006-06-06 Magnus Division Of Lv Ventures, Inc. Interior contour for bore of a friction support bearing of a railway locomotive traction motor
US7380431B2 (en) * 2005-07-18 2008-06-03 Morgan Construction Company Oil film bearing with compact hydraulic mount
DE102005044956A1 (en) * 2005-09-20 2007-03-22 Voith Patent Gmbh Spreader roll
DE102005044957A1 (en) * 2005-09-20 2007-03-22 Voith Patent Gmbh Spreader roll
DE102005044958A1 (en) * 2005-09-20 2007-03-22 Voith Patent Gmbh Spreader roll
JP4701067B2 (en) * 2005-10-20 2011-06-15 東芝機械株式会社 roll
DE102006019448A1 (en) * 2006-04-24 2007-10-25 Sms Demag Ag puller
US7857522B2 (en) 2007-01-31 2010-12-28 Siemens Industry, Inc. Rolling mill oil film bearing
DE102008054715A1 (en) * 2008-12-16 2010-06-17 Voith Patent Gmbh Bearing for a rotatable and by vibration excitation in the direction of the axis of rotation movable roller, in particular breast roll and method for controlling the operation of such a roller
ITUD20090062A1 (en) * 2009-03-26 2010-09-27 Danieli Off Mecc CONNECTION COMPONENT FOR OIL FILM BEARINGS
CN101922501B (en) * 2010-09-29 2012-07-04 中冶南方工程技术有限公司 Gap-adjustable crossed roller bearing
DE102010047471A1 (en) * 2010-10-06 2012-04-12 Sms Siemag Ag Method for processing a bearing arrangement and bearing arrangement
US9016099B2 (en) 2011-09-29 2015-04-28 Siemens Industry, Inc. Hybrid hydrodynamic and hydrostatic bearing bushing and lubrication system for rolling mill
CN102518667A (en) * 2011-12-19 2012-06-27 西安威而信精密仪器有限公司 Conical air floating shaft system
DE102012209828A1 (en) 2012-06-12 2013-12-12 Sms Siemag Ag roll arrangement
DE102012209831A1 (en) 2012-06-12 2013-12-12 Sms Siemag Ag roll arrangement
CN103316922A (en) * 2013-05-20 2013-09-25 浙江朋诚科技有限公司 Roll shaft structure of high-speed rolling mill
US10006486B2 (en) 2015-03-05 2018-06-26 Primetals Technologies USA LLC Spherical oil film bearing
DE102015209637A1 (en) * 2015-05-26 2016-12-01 Sms Group Gmbh roll arrangement
RU2630137C1 (en) * 2016-08-12 2017-09-05 Открытое акционерное общество "Электростальский завод тяжелого машиностроения" Mill roll liquid friction bearing trunnion bush
EP3860762B1 (en) * 2018-10-01 2023-12-06 Sandvik SRP AB Gyratory crusher main shaft sleeve
FR3094425B1 (en) * 2019-03-27 2021-04-23 Poclain Hydraulics Ind Hydraulic machine with advanced bearing
US11478831B2 (en) * 2020-03-04 2022-10-25 Primetals Technologies USA LLC Mechanical high speed roll change system for use with robotic roll change system
DE202021001817U1 (en) 2021-05-21 2021-07-05 Sms Group Gmbh Journal bushing as part of an oil film bearing
DE102021205276A1 (en) 2021-05-21 2021-07-22 Sms Group Gmbh Journal bushing as part of an oil film bearing
WO2023204804A1 (en) * 2022-04-20 2023-10-26 Primetals Technologies USA LLC Bearing temperature reduction through sleeve modification
WO2024058785A1 (en) * 2022-09-16 2024-03-21 Primetals Technologies USA LLC Bearing temperature reduction through bushing modification
DE202023107432U1 (en) 2023-12-15 2024-01-16 Primetals Technologies USA LLC Sleeve as part of an oil film bearing for a rolling mill roll, oil film bearing and roll stand

Family Cites Families (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2543154A (en) 1949-01-28 1951-02-27 American Brake Shoe Co Sleeve journal for railway equipment
US2905511A (en) 1955-03-28 1959-09-22 Clevite Corp Bearing
US3453031A (en) * 1967-04-06 1969-07-01 Morgan Construction Co Bearing assembly
JPS51112760A (en) 1975-03-29 1976-10-05 Kawasaki Steel Co Taper neck bearing for rolling mill roll
US4073550A (en) 1976-05-26 1978-02-14 Gould Inc. Sleeve bearing
US4159152A (en) * 1977-10-11 1979-06-26 Morgan Construction Company Means for lubricating the roll neck/sleeve interface of an oil film bearing
CA1094622A (en) 1978-06-23 1981-01-27 George P. Bernreiter Adjustable bearing system
DE2848994A1 (en) 1978-11-11 1980-05-22 Bosch Gmbh Robert GEAR MACHINE (PUMP OR HYDROMOTOR)
US4384748A (en) 1979-08-31 1983-05-24 Kawasaki Steel Corporation Oil film bearing for rolling roll for producing rolled sheets having a low deviation of sheet thickness
JPS5933442B2 (en) 1980-07-08 1984-08-16 川崎製鉄株式会社 Oil film bearing for rolling rolls
US4372626A (en) 1981-09-11 1983-02-08 Mesta Machine Company Taper journal bearing for rolls for use in rolling mills
DE3150496A1 (en) 1981-12-19 1983-11-24 Mannesmann AG, 4000 Düsseldorf OIL FILM BEARING
US4605363A (en) 1985-03-25 1986-08-12 Sundstrand Corporation Gear pump with pivoted bushings that can deflect
GB8720915D0 (en) 1987-09-05 1987-10-14 Coussinets Ste Indle Bearings
US4836758A (en) 1987-11-20 1989-06-06 Copeland Corporation Scroll compressor with canted drive busing surface
US5029461A (en) 1988-02-18 1991-07-09 N H C, Inc. Hydraulic fastener
US4995735A (en) 1988-12-22 1991-02-26 Dansdill Terence J Contoured journal bearing
DE3924277C1 (en) * 1989-07-22 1990-11-08 Vegla Vereinigte Glaswerke Gmbh, 5100 Aachen, De
US4938615A (en) 1989-10-26 1990-07-03 The Timken Company Roll neck bearing
US5136766A (en) * 1991-02-07 1992-08-11 National Roll Inc Rolling mill sleeve
BR9204743A (en) 1992-12-29 1994-11-29 Metal Leve Sa Multilayer bearing.
DE4436629C2 (en) 1994-10-13 1998-08-13 Koenig & Bauer Albert Ag Bearing bush
DE19739929A1 (en) * 1997-09-11 1999-04-01 Glyco Metall Werke Extremely thin-walled plain bearing
US5927862A (en) * 1997-09-29 1999-07-27 Debnam; Carey Dean Bearing
US6123461A (en) * 1998-08-24 2000-09-26 Morgan Construction Company Oil film bearing sleeve and keying arrangement
US6149309A (en) * 1999-07-13 2000-11-21 Morgan Construction Company Bushing for oil film bearing

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CN1203934C (en) 2005-06-01
BR0105919A (en) 2002-08-06
JP3609371B2 (en) 2005-01-12
JP2002192207A (en) 2002-07-10
KR20020046182A (en) 2002-06-20
EP1213061A2 (en) 2002-06-12
EP1213061B1 (en) 2006-04-12
ES2257386T3 (en) 2006-08-01
KR100476605B1 (en) 2005-03-18
EP1213061A3 (en) 2004-05-12
DE60118695T2 (en) 2007-03-29
BR0105919B1 (en) 2010-06-15
MXPA01012669A (en) 2003-08-20
CN1357418A (en) 2002-07-10
ATE322946T1 (en) 2006-04-15
US6468194B2 (en) 2002-10-22
RU2227853C2 (en) 2004-04-27
CA2363815A1 (en) 2002-06-08
US20020103062A1 (en) 2002-08-01
DE60118695D1 (en) 2006-05-24
CA2363815C (en) 2006-09-19

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